Home / 27,548.38-38,015.31-15,611.86

Finding the Fourth Proportional to 27,548.38, 38,015.31 and 15,611.86

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Solution

The fourth proportional to 27,548.38, 38,015.31 and 15,611.86 is: 21,543.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,548.38 : 38,015.31 = 15,611.86 : x
  2. Step 2: Convert to fraction form
    27,548.38/38,015.31 = 15,611.86/x
  3. Step 3: Cross multiply
    27,548.38x = 38,015.31 × 15,611.86
  4. Step 4: Simplify right side
    27,548.38x = 593,489,697.58
  5. Step 5: Solve for x
    x = 593,489,697.58/27,548.38
  6. Step 6: Final answer
    x = 21,543.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.